package filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


@WebFilter("/admin/*")
public class AdminAuthorityFilter implements Filter {

    public AdminAuthorityFilter() {
        // TODO Auto-generated constructor stub
    }

	public void destroy() {
		// TODO Auto-generated method stub
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		System.out.println("进入admin过滤器");
		HttpServletRequest req= (HttpServletRequest)request;
		HttpServletResponse resp= (HttpServletResponse)response;
		if(req.getSession().getAttribute("admin")!=null){
			chain.doFilter(request, response);
		}else{
			resp.sendRedirect(req.getContextPath()+"/adminLogin.jsp");
		}
		System.out.println("离开admin过滤器");
	}

	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
